C++ (Cpp) MaxIntegerSamples Examples

Example #1

File: gl-320-fbo-integer-blit.cpp Project: LeoYao/ogl-samples

	bool initTexture()
	{
		GLint MaxSampleMaskWords(0);
		GLint MaxColorTextureSamples(0);
		GLint MaxDepthTextureSamples(0);
		GLint MaxIntegerSamples(0);

		glGetIntegerv(GL_MAX_SAMPLE_MASK_WORDS, &MaxSampleMaskWords); 
		glGetIntegerv(GL_MAX_COLOR_TEXTURE_SAMPLES, &MaxColorTextureSamples); 
		glGetIntegerv(GL_MAX_DEPTH_TEXTURE_SAMPLES, &MaxDepthTextureSamples); 
		glGetIntegerv(GL_MAX_INTEGER_SAMPLES, &MaxIntegerSamples); 

		gli::texture2D Texture(gli::load_dds((getDataDirectory() + TEXTURE_DIFFUSE).c_str()));

		glGenTextures(texture::MAX, &TextureName[0]);
		glActiveTexture(GL_TEXTURE0);
		glBindTexture(GL_TEXTURE_2D, TextureName[texture::DIFFUSE]);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		for(std::size_t Level = 0; Level < Texture.levels(); ++Level)
		{
			glTexImage2D(
				GL_TEXTURE_2D, 
				GLint(Level), 
				GL_RGBA8UI, 
				GLsizei(Texture[Level].dimensions().x), 
				GLsizei(Texture[Level].dimensions().y), 
				0,
				GL_BGR_INTEGER, GL_UNSIGNED_BYTE,
				Texture[Level].data());
		}
		glBindTexture(GL_TEXTURE_2D, 0);

		glm::ivec2 WindowSize(this->getWindowSize());

		glBindTexture(GL_TEXTURE_2D, TextureName[texture::RENDERBUFFER]);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8UI,
			WindowSize.x / FRAMEBUFFER_SIZE,
			WindowSize.y / FRAMEBUFFER_SIZE,
			0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, 0);
		glBindTexture(GL_TEXTURE_2D, 0);

		glBindTexture(GL_TEXTURE_2D, TextureName[texture::SPLASHBUFFER]);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8UI,
			WindowSize.x / FRAMEBUFFER_SIZE,
			WindowSize.y / FRAMEBUFFER_SIZE,
			0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, 0);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);

		glBindTexture(GL_TEXTURE_2D, 0);

		return this->checkError("initTexture");
	}

Example #2

File: gl-320-fbo-integer.cpp Project: mzhg/ogl-samples

	bool initTexture()
	{
		GLint MaxSampleMaskWords(0);
		GLint MaxColorTextureSamples(0);
		GLint MaxDepthTextureSamples(0);
		GLint MaxIntegerSamples(0);

		glGetIntegerv(GL_MAX_SAMPLE_MASK_WORDS, &MaxSampleMaskWords);
		glGetIntegerv(GL_MAX_COLOR_TEXTURE_SAMPLES, &MaxColorTextureSamples);
		glGetIntegerv(GL_MAX_DEPTH_TEXTURE_SAMPLES, &MaxDepthTextureSamples);
		glGetIntegerv(GL_MAX_INTEGER_SAMPLES, &MaxIntegerSamples);

		gli::texture2d Texture(gli::load_dds((getDataDirectory() + TEXTURE_DIFFUSE).c_str()));
		gli::gl GL(gli::gl::PROFILE_GL32);

		glGenTextures(texture::MAX, &TextureName[0]);
		glActiveTexture(GL_TEXTURE0);
		glBindTexture(GL_TEXTURE_2D, TextureName[texture::DIFFUSE]);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 3);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

		gli::gl::format const Format = GL.translate(gli::FORMAT_RGB8_UINT_PACK8, Texture.swizzles());
		for(std::size_t Level = 0; Level < Texture.levels(); ++Level)
		{
			glTexImage2D(GL_TEXTURE_2D, GLint(Level),
				Format.Internal,
				GLsizei(Texture[Level].extent().x), GLsizei(Texture[Level].extent().y),
				0,
				Format.External, Format.Type,
				Texture[Level].data());
		}

		glm::ivec2 WindowSize(this->getWindowSize());

		glBindTexture(GL_TEXTURE_2D, TextureName[texture::RENDERBUFFER]);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8UI,
			WindowSize.x / FRAMEBUFFER_SIZE, WindowSize.y / FRAMEBUFFER_SIZE,
			0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, 0);
		glBindTexture(GL_TEXTURE_2D, 0);

		return this->checkError("initTexture");
	}

Example #3

File: gl-320-fbo-multisample-integer.cpp Project: Daft-Freak/vogl

bool initTexture()
{
	gli::texture2D Texture(gli::loadStorageDDS(glf::DATA_DIRECTORY + TEXTURE_DIFFUSE));

	glGenTextures(texture::MAX, &TextureName[0]);
	glActiveTexture(GL_TEXTURE0);
	glBindTexture(GL_TEXTURE_2D, TextureName[texture::DIFFUSE]);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	for(std::size_t Level = 0; Level < Texture.levels(); ++Level)
	{
		glTexImage2D(
			GL_TEXTURE_2D, 
			GLint(Level), 
			GL_RGBA8UI, 
			GLsizei(Texture[Level].dimensions().x), 
			GLsizei(Texture[Level].dimensions().y), 
			0,
			GL_BGR_INTEGER, GL_UNSIGNED_BYTE,
			Texture[Level].data());
	}

	glBindTexture(GL_TEXTURE_2D, 0);

	GLint MaxSampleMaskWords(0);
	GLint MaxColorTextureSamples(0);
	GLint MaxDepthTextureSamples(0);
	GLint MaxIntegerSamples(0);

	glGetIntegerv(GL_MAX_SAMPLE_MASK_WORDS, &MaxSampleMaskWords); 
	glGetIntegerv(GL_MAX_COLOR_TEXTURE_SAMPLES, &MaxColorTextureSamples); 
	glGetIntegerv(GL_MAX_DEPTH_TEXTURE_SAMPLES, &MaxDepthTextureSamples); 
	glGetIntegerv(GL_MAX_INTEGER_SAMPLES, &MaxIntegerSamples); 

	glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, TextureName[texture::MULTISAMPLE]);
	glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, MaxIntegerSamples, GL_RGBA8UI, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y, GL_TRUE);
	glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, 0);

	glBindTexture(GL_TEXTURE_2D, TextureName[texture::COLORBUFFER]);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8UI, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, 0);
	glBindTexture(GL_TEXTURE_2D, 0);

	return glf::checkError("initTexture");
}